Home / 16,880.35-25,318.43-10,555.78

Finding the Fourth Proportional to 16,880.35, 25,318.43 and 10,555.78

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Solution

The fourth proportional to 16,880.35, 25,318.43 and 10,555.78 is: 15,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880.35 : 25,318.43 = 10,555.78 : x
  2. Step 2: Convert to fraction form
    16,880.35/25,318.43 = 10,555.78/x
  3. Step 3: Cross multiply
    16,880.35x = 25,318.43 × 10,555.78
  4. Step 4: Simplify right side
    16,880.35x = 267,255,660.95
  5. Step 5: Solve for x
    x = 267,255,660.95/16,880.35
  6. Step 6: Final answer
    x = 15,832.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.